#include <stdio.h>
void main()
{  int  i=6, a, b;
    printf("%d\n", ++i );
    printf("%d\n", i++ );
    a=--i;   
 	printf("%d\n", a );
    b=i--;   
 	printf("%d\n", b );
    printf("%d\n", -i++);
    printf("i=%d\n", i );
}
